Source: Federal Reserve Bank of Philadelphia  

Release: Nonmanufacturing Business Outlook Survey  

Units:  Index, Not Seasonally Adjusted

Frequency:  Monthly

Current Inventories reports the change in inventories compared to the previous month for reporting service firms. The diffusion index is calculated by taking the percent reporting increases and subtracting the percentage reporting decreases. For more information about this release from the Federal Reserve Bank of Philadelphia, visit: http://www.philadelphiafed.org/research-and-data/regional-economy/nonmanufacturing-business-outlook-survey/ .